US1032536A - Apparatus for purifying the exhaust of internal-combustion engines. - Google Patents
Apparatus for purifying the exhaust of internal-combustion engines. Download PDFInfo
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- US1032536A US1032536A US64111411A US1911641114A US1032536A US 1032536 A US1032536 A US 1032536A US 64111411 A US64111411 A US 64111411A US 1911641114 A US1911641114 A US 1911641114A US 1032536 A US1032536 A US 1032536A
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- compartment
- exhaust
- inlet
- compartments
- discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/30—Exhaust treatment
Definitions
- This invention relates to apparatus for I purifying the exhaust of internal combustion engines and particularly of automobile engines, and the object thereof is to provide an apparatus of this class through I which the exhaust is passed and by means of which objectionable odors are removed from said exhaust, and said exhaust is purified so that when finally discharged into the air it will be in a transparent or substantially transparent condition and'free of ob jectionable' odors, carbonic acid gases and other deleterious products produced by the combustion 'of oil or its derivatives, and with this and other objects in View, the in vention consists of an apparatus of the class specified, constructed as. hereinafter described and claimed. a
- Figure 1 is a longitudinal sectional View showing our improved apparatus applied to the muffler of an automobile engine
- Fig. 2 a view similar to Fig. 1, but showing a modification
- Fig. 3 a partial section on the line 3-3 of Fig. 1 or on the line 33 of Fig. 2.
- ipartments 0, c and 0 are placed in communication by means of ports or passages 0 and a in the bottom portions of the corresponding partitions.
- a tube d Placed centrally in the compartment 0 is a tube d which extends out through. the top of said compartment and ,down to'the bottom thereof and is provided with lateral discharges cP, and a .pipe 6 forms a communi-. cation between the muffler a and the tube d,
- said pipe 6 being connected with or extend- I ing into the top of said tube 03.
- tubes f which communicate with the compartment 0 through the partition 6 as shown at F, and these tubes f extend downwardly a predetermined distance preferably approximately to the 1 horizontal center of said compartment 0 or above the same, and in the compartment o 1 are similar tubes 9 which communicate with the compartment 0 through the top portion ⁇ of the partition 12 as shown at 9 and'said tubes d also extend downwardly and open downwardly to the same extent and in the 1 same manner as the'tubes f.
- v r In the topportion of the partitionb is an aperture 71, forming a communlcation between the compartments 0 and 0 and in the:
- ' partition 6 is a similar aperture 2' forming a communication between the compartments '0 and 0
- arotary fan j and in fan k Placed in the central portion of the compartment 0 is arotary fan j and in fan k.
- - -We also preferably place in the bottom portion of the compartment '0 stirring devices m which may be made in the form of fans or of any other shape, and in the top of the compartment 0 is a filling orifice n and in the bottom thereof a discharge orifice 11?, said orifices being preferably closed by threaded plugs, and in the bottom of the compartment 0* is a drip or condensation discharge a while the compartment 0 is provided in the bottom thereof with numerous perforations n".
- a suitable disinfecting and purifying solution 0 is placed in the compartment c and flows into the compartments and and enough of this liquid is pref crably employed to fill said compartments from one-third to one-half of their capacity.
- the exhaust from the muflier a passes through the tube bottom portion thereof is a similar rotary e down through the tube d and isdis-' charged at the bottom of said tube into the liquid through which it passes upwardly into the top of said compartment, from which it passes through the'tubes f into the compartment 0 and is directed downwardly onto the surface of said liquid, and said exhaust then passes into the compartment a through the tubes 9 from which it is discharged downwardly onto the surface of the liquid in said compartment after which, it passes into the compartment 0 through the port or passage h, and from which compartment it passes into the compartment 0 through the port or passage 2' and is finally discharged from the bottom perforations n in a pure and transparent or approximately transparent condition.
- stirrers or fans m in the compartment c agitate the liquid '0 therein and facilitate the passage of the exhaust upwardly .therethrough, and the fans y' and 7c serve to break up and agitate the exhaust as it passes through the compartments 0 and c and to remove therefrom any steam or vapor which may remain therein.
- the compartments 0 and c are omitted and only the compartments 0, c and c are em- I the compartment ployed.
- the agitators or fans m are also omitted, but it will be understood that they may be employed if desired.
- the compartment 0 in this form of construction is also provided in the bottom thereof with a drip or condensation discharge p, and the operation will be readily understood to be the same as with the construction shown in Fig. '1, the only difference being that the exhaust passes directly from the'compartment 'c into the compartment 0 from which it passes into Our invention is not limited to the use of the tubes f and g in the construction shown in Fig. 1 nor to the tubes f in they 1 construction shown in Fig. 2, all that is chlorid of calcium and chlorid of zinc combined in the usual manner.
- any suitable agitators may be employed and it will also be understood that the agitators or fans j, k and m may be driven in any desired manner, and from .the foregoing description it will be seen that the compartment 0 is the inlet compartment of the ap paratus or the tank I), while the compartment c 'is the discharge compartment.
- An exhaust purifier for use in connec tion with automobile internal combustion engines comprising a tank divided by transverse partitions into two end compartments and an intermediate compartment,
- one end compartment constituting an inlet compartment and the other an outlet, compartment
- the inlet compartment being provided with a tube which communicates with the bottom portion thereof and whi ch 1s adapted to be placed in communication with the mufiier of the engine, said inlet and intermediate compartments being also in communication' at the bottom thereof and at the top portion thereof, and the intermediate compartment. being in communication with the topv portion of the outlet compartment.
- An exhaust purifier for use in c onnec-. tion with automoblle Internal combustlon engines comprising a .tank divided by transverse partitions into two end compartments and'an intermediate compartment, one end compartment constituting an inlet compartment and the other an outlet compartment,
- the inlet compartment being provided with a tube which communicates with the bottom portion thereof and which 1s adapted to be placed in communication with the muftier of the engine, said inlet and intermediate compartments being also in communication at the bottom thereof and at the top portion thereof, and the intermediate compartment being in communication with the top portionof the outlet compartment, and said outlet compartment being provlded with an agitator and with a discharge.
- the combination with the muffler of an automobile internal combustion engine, ofan exhaust purifier comprising a tank located below the muflier and divided by transverse partitions into two end compartments and an intermediate compartment, one end compartment constituting an inlet compartment and the other an outlet compartment, said inlet and intermediate said outlet compartment being provided with a discharge, and means for placing the muflier in communication with the bottom of the inlet compartment.
- An exhaust purifier for internal combustion engines comprising a tank divided by transverse partitions into two end and intermediate compartments, one end compartment being a discharge compartment and the other an inlet compartment, the discharge compartment being provided with discharge perforations, and the inlet compartment being provided with a tube which opens out through the top thereof and discharges into the bottom portion thereof, two of the intermediate compartments being in communication with each other and with the inlet compartment both at the top and bottom thereof, the compartment adjacent to the discharge compartment being in communication-With said discharge compartment and with the top portion of the adjacent intermediate com partment, the discharge compartment and the compartment adjacent thereto being provided with agitators, and the bottom of the inlet compartment being also provided with agitators.
- An exhaustpurifier for internal combustion .engines of automobiles comprising a tank divided by transverse partitions into two end compartments and intermediate compartments, one end compartment constituting an inlet compartment and the other end compartment a discharge compartment, the intermediate compartments adjacent to the inlet compartment being in communication therewith and with each other at the bottom thereof and also atthe top thereof, and the intermediate compart ments adjacent to the discharge compartment being in communication therewith, at the top thereof and said discharge compartment being also provided with a discharge, and means for placing the bottom portion of the inlet compartment in communication with the muflier of the engine.
- An exhaust purifier for internal combustion engines of automobiles comprising a tank divided by transverse partitions into two ,end compartments and intermediate compartments, one end compartment constituting an inlet compartment and the other end compartment a discharge compartment, the intermediate compartments adjacent to the inlet compartment being in communication therewith and with each other at the bottom thereof and also at the top thereof, and the intermediate compartments adjacent to the discharge compartment being in communication therewith, at the top thereof and said discharge compartment being'also provided with a discharge, means forplacing the bottom portion of the inlet compartment in communication with the muffler of the engine, and said inlet and outlet com partments being also provided with agitators.
Description
P. GERLI & G. BLENIO. APPARATUS FOR PURIFYING THE EXHAUST OF INTERNAL GOMBUSTION ENGINES.
APPLICATION IILED IULY2B, 1911.
Patented July 16, 1912.
m6 Ah N l/VVENTUHS 94UL6EQL/ mf 61/00 5/.E/W0
A WU:
l1 TTORIV E Y 8 WITNESSES Y To all whom it may concern,
PAUL GERLI AND sumo Bunnie, on NEW roman, Y."
APPARATUS FOR PURI YING THE EXHAUST QFINTERNAL-CQM'B'USTION ENGINES."
Specification of Letters Patent.
Patented July 16, 1912'.
Application filed July as, 1911. Serial No. 641,114.
- This invention relates to apparatus for I purifying the exhaust of internal combustion engines and particularly of automobile engines, and the object thereof is to provide an apparatus of this class through I which the exhaust is passed and by means of which objectionable odors are removed from said exhaust, and said exhaust is purified so that when finally discharged into the air it will be in a transparent or substantially transparent condition and'free of ob jectionable' odors, carbonic acid gases and other deleterious products produced by the combustion 'of oil or its derivatives, and with this and other objects in View, the in vention consists of an apparatus of the class specified, constructed as. hereinafter described and claimed. a
The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of our improvement are designated by suitable reference characters in each of the views, and in which Figure 1 is a longitudinal sectional View showing our improved apparatus applied to the muffler of an automobile engine; Fig. 2 a view similar to Fig. 1, but showing a modification, and Fig. 3 a partial section on the line 3-3 of Fig. 1 or on the line 33 of Fig. 2.
Automobiles, as is well known, use internal combustion engines and all machines of this class are provided with mulllcrs, and in the accompanying drawing we have shown at a a muffier of the class and for the purpose specified, and in the practice of our invention we secure to and beneath the truck of an automobile frame and preferably ad.-
ipartments 0, c and 0 are placed in communication by means of ports or passages 0 and a in the bottom portions of the corresponding partitions.
Placed centrally in the compartment 0 is a tube d which extends out through. the top of said compartment and ,down to'the bottom thereof and is provided with lateral discharges cP, and a .pipe 6 forms a communi-. cation between the muffler a and the tube d,
said pipe 6 being connected with or extend- I ing into the top of said tube 03.
In the top portion of the compartment 0 are downwardly directed tubes f which communicate with the compartment 0 through the partition 6 as shown at F, and these tubes f extend downwardly a predetermined distance preferably approximately to the 1 horizontal center of said compartment 0 or above the same, and in the compartment o 1 are similar tubes 9 which communicate with the compartment 0 through the top portion {of the partition 12 as shown at 9 and'said tubes d also extend downwardly and open downwardly to the same extent and in the 1 same manner as the'tubes f. v r In the topportion of the partitionb is an aperture 71, forming a communlcation between the compartments 0 and 0 and in the:
' partition 6 is a similar aperture 2' forming a communication between the compartments '0 and 0 Placed in the central portion of the compartment 0 is arotary fan j and in fan k.- -We also preferably place in the bottom portion of the compartment '0 stirring devices m which may be made in the form of fans or of any other shape, and in the top of the compartment 0 is a filling orifice n and in the bottom thereof a discharge orifice 11?, said orifices being preferably closed by threaded plugs, and in the bottom of the compartment 0* is a drip or condensation discharge a while the compartment 0 is provided in the bottom thereof with numerous perforations n".
In practice a suitable disinfecting and purifying solution 0 is placed in the compartment c and flows into the compartments and and enough of this liquid is pref crably employed to fill said compartments from one-third to one-half of their capacity.
In the use of this apparatus the exhaust from the muflier a passes through the tube bottom portion thereof is a similar rotary e down through the tube d and isdis-' charged at the bottom of said tube into the liquid through which it passes upwardly into the top of said compartment, from which it passes through the'tubes f into the compartment 0 and is directed downwardly onto the surface of said liquid, and said exhaust then passes into the compartment a through the tubes 9 from which it is discharged downwardly onto the surface of the liquid in said compartment after which, it passes into the compartment 0 through the port or passage h, and from which compartment it passes into the compartment 0 through the port or passage 2' and is finally discharged from the bottom perforations n in a pure and transparent or approximately transparent condition. In this operation, the stirrers or fans m in the compartment c agitate the liquid '0 therein and facilitate the passage of the exhaust upwardly .therethrough, and the fans y' and 7c serve to break up and agitate the exhaust as it passes through the compartments 0 and c and to remove therefrom any steam or vapor which may remain therein.
In the construction shown in Fig. 2 the compartments 0 and c are omitted and only the compartments 0, c and c are em- I the compartment ployed. Inthis construction the agitators or fans m are also omitted, but it will be understood that they may be employed if desired. The compartment 0 in this form of construction is also provided in the bottom thereof with a drip or condensation discharge p, and the operation will be readily understood to be the same as with the construction shown in Fig. '1, the only difference being that the exhaust passes directly from the'compartment 'c into the compartment 0 from which it passes into Our invention is not limited to the use of the tubes f and g in the construction shown in Fig. 1 nor to the tubes f in they 1 construction shown in Fig. 2, all that is chlorid of calcium and chlorid of zinc combined in the usual manner.
The automobile is not shown for the reason that it forms no part of our invention, it being deemed suflicient, to indicate the muffler ofthe engine and the form of ourimproved purifying apparatus and to de- I scribe the method of its operation, and it will be understood that the apparatus may 'be'applied to or connected with the truck frame of the automobile in any desired manner. I
It will be understood thatwhile we have described the parts 7', la and m as fans, any suitable agitators may be employed and it will also be understood that the agitators or fans j, k and m may be driven in any desired manner, and from .the foregoing description it will be seen that the compartment 0 is the inlet compartment of the ap paratus or the tank I), while the compartment c 'is the discharge compartment.
Having fully described our invention what we claim as new and desire tosecure by Letters Patent, is
1. An exhaust purifier for use in connec tion with automobile internal combustion engines, comprising a tank divided by transverse partitions into two end compartments and an intermediate compartment,
one end compartment constituting an inlet compartment and the other an outlet, compartment, the inlet compartment being provided with a tube which communicates with the bottom portion thereof and whi ch 1s adapted to be placed in communication with the mufiier of the engine, said inlet and intermediate compartments being also in communication' at the bottom thereof and at the top portion thereof, and the intermediate compartment. being in communication with the topv portion of the outlet compartment.
2. An exhaust purifier for use in c onnec-. tion with automoblle Internal combustlon engines, comprising a .tank divided by transverse partitions into two end compartments and'an intermediate compartment, one end compartment constituting an inlet compartment and the other an outlet compartment,
the inlet compartment being provided with a tube which communicates with the bottom portion thereof and which 1s adapted to be placed in communication with the muftier of the engine, said inlet and intermediate compartments being also in communication at the bottom thereof and at the top portion thereof, and the intermediate compartment being in communication with the top portionof the outlet compartment, and said outlet compartment being provlded with an agitator and with a discharge.
3. The combination with the muffler of an automobile internal combustion engine, ofan exhaust purifier comprising a tank located below the muflier and divided by transverse partitions into two end compartments and an intermediate compartment, one end compartment constituting an inlet compartment and the other an outlet compartment, said inlet and intermediate said outlet compartment being provided with a discharge, and means for placing the muflier in communication with the bottom of the inlet compartment.
4;. The combination with the mutfler of an automobile internal combustion engine, of an exhaust purifier-comprising a tank divided bytransverse partitions into two end compartments and an intermediate compartment, one end compartment constituting an inlet compartment and the other an outlet compartment, said inlet and intermediate compartments being in communication with each other both at the top and bottom thereof and the intermediate compartment being in communication with the top portion of the outlet compartment, and said outlet compartment being provided with a discharge'and with an agitatoryand means for placing the bottom portion of the inlet compartment in communication with the inufller.
5. An exhaust purifier for internal combustion engines comprising a tank divided by transverse partitions into two end and intermediate compartments, one end compartment being a discharge compartment and the other an inlet compartment, the discharge compartment being provided with discharge perforations, and the inlet compartment being provided with a tube which opens out through the top thereof and discharges into the bottom portion thereof, two of the intermediate compartments being in communication with each other and with the inlet compartment both at the top and bottom thereof, the compartment adjacent to the discharge compartment being in communication-With said discharge compartment and with the top portion of the adjacent intermediate com partment, the discharge compartment and the compartment adjacent thereto being provided with agitators, and the bottom of the inlet compartment being also provided with agitators.
6. An exhaustpurifier for internal combustion .engines of automobiles, comprising a tank divided by transverse partitions into two end compartments and intermediate compartments, one end compartment constituting an inlet compartment and the other end compartment a discharge compartment, the intermediate compartments adjacent to the inlet compartment being in communication therewith and with each other at the bottom thereof and also atthe top thereof, and the intermediate compart ments adjacent to the discharge compartment being in communication therewith, at the top thereof and said discharge compartment being also provided with a discharge, and means for placing the bottom portion of the inlet compartment in communication with the muflier of the engine.
7 An exhaust purifier for internal combustion engines of automobiles, comprising a tank divided by transverse partitions into two ,end compartments and intermediate compartments, one end compartment constituting an inlet compartment and the other end compartment a discharge compartment, the intermediate compartments adjacent to the inlet compartment being in communication therewith and with each other at the bottom thereof and also at the top thereof, and the intermediate compartments adjacent to the discharge compartment being in communication therewith, at the top thereof and said discharge compartment being'also provided with a discharge, means forplacing the bottom portion of the inlet compartment in communication with the muffler of the engine, and said inlet and outlet com partments being also provided with agitators.
In testimony that we claim the foregoing Witnesses:
(LE. MULREANY, FRANK G. AT LEE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64111411A US1032536A (en) | 1911-07-28 | 1911-07-28 | Apparatus for purifying the exhaust of internal-combustion engines. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64111411A US1032536A (en) | 1911-07-28 | 1911-07-28 | Apparatus for purifying the exhaust of internal-combustion engines. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1032536A true US1032536A (en) | 1912-07-16 |
Family
ID=3100825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US64111411A Expired - Lifetime US1032536A (en) | 1911-07-28 | 1911-07-28 | Apparatus for purifying the exhaust of internal-combustion engines. |
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| Country | Link |
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| US (1) | US1032536A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2580527A (en) * | 1946-06-11 | 1952-01-01 | Sulzer Ag | Method and absorption means for separating and for recovering carbon monoxide from gas mixtures |
| US2602730A (en) * | 1950-03-29 | 1952-07-08 | Finn John | Apparatus for treating noxious gases |
| US2611680A (en) * | 1950-01-16 | 1952-09-23 | Joseph P Ruth | Exhaust gas conditioning method |
| US2612745A (en) * | 1947-12-24 | 1952-10-07 | Veechio Luigi | Apparatus for eliminating toxic gases from exhaust fumes |
| US2768881A (en) * | 1952-06-18 | 1956-10-30 | Joseph P Ruth | Gas-conditioning system |
| US2870862A (en) * | 1954-11-10 | 1959-01-27 | Internat Fermont Machinery Co | Means for safely exhausting hot gases |
| US2904958A (en) * | 1956-10-19 | 1959-09-22 | Fluor Corp | Spark and flame arrester |
| US2954095A (en) * | 1957-09-30 | 1960-09-27 | Rexair Inc | Vacuum cleaner |
| US3137740A (en) * | 1961-03-06 | 1964-06-16 | Francis J Gorman | Fan with evaporative cooling effect |
| US3391521A (en) * | 1966-04-20 | 1968-07-09 | Eugene B. Pal | Apparatus for purifying exhaust gases |
| US3485015A (en) * | 1966-03-28 | 1969-12-23 | Luigi Vecchio | Exhaust gas scrubber |
| US3729900A (en) * | 1970-11-30 | 1973-05-01 | W Denning | De-smoger |
| US3756171A (en) * | 1971-02-04 | 1973-09-04 | Bord H De | System for eliminating environmental pollution |
| US3998613A (en) * | 1974-10-29 | 1976-12-21 | Attig Donald B | Apparatus for removing sulfur dioxide and particulate matter from flue gases |
| US4282017A (en) * | 1979-09-12 | 1981-08-04 | Chen Hsi Chi | Automobile dirty smoke eliminator |
| US5143527A (en) * | 1991-04-24 | 1992-09-01 | Tian Song Guo | Waste gas-purifying device |
| US5364424A (en) * | 1992-05-15 | 1994-11-15 | Teles De Menezes Junior Antoni | Filter for washing and retention of exhaust gases in motorized vehicles |
| US20060057036A1 (en) * | 2002-10-25 | 2006-03-16 | Angel Ayala Hermosillo | System for elimnating polluting gases produced from combustion processes |
| US20210060283A1 (en) * | 2019-08-28 | 2021-03-04 | Koninklijke Philips N.V. | Humidifying a gas flow stream |
-
1911
- 1911-07-28 US US64111411A patent/US1032536A/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2580527A (en) * | 1946-06-11 | 1952-01-01 | Sulzer Ag | Method and absorption means for separating and for recovering carbon monoxide from gas mixtures |
| US2612745A (en) * | 1947-12-24 | 1952-10-07 | Veechio Luigi | Apparatus for eliminating toxic gases from exhaust fumes |
| US2611680A (en) * | 1950-01-16 | 1952-09-23 | Joseph P Ruth | Exhaust gas conditioning method |
| US2602730A (en) * | 1950-03-29 | 1952-07-08 | Finn John | Apparatus for treating noxious gases |
| US2768881A (en) * | 1952-06-18 | 1956-10-30 | Joseph P Ruth | Gas-conditioning system |
| US2870862A (en) * | 1954-11-10 | 1959-01-27 | Internat Fermont Machinery Co | Means for safely exhausting hot gases |
| US2904958A (en) * | 1956-10-19 | 1959-09-22 | Fluor Corp | Spark and flame arrester |
| US2954095A (en) * | 1957-09-30 | 1960-09-27 | Rexair Inc | Vacuum cleaner |
| US3137740A (en) * | 1961-03-06 | 1964-06-16 | Francis J Gorman | Fan with evaporative cooling effect |
| US3485015A (en) * | 1966-03-28 | 1969-12-23 | Luigi Vecchio | Exhaust gas scrubber |
| US3391521A (en) * | 1966-04-20 | 1968-07-09 | Eugene B. Pal | Apparatus for purifying exhaust gases |
| US3729900A (en) * | 1970-11-30 | 1973-05-01 | W Denning | De-smoger |
| US3756171A (en) * | 1971-02-04 | 1973-09-04 | Bord H De | System for eliminating environmental pollution |
| US3998613A (en) * | 1974-10-29 | 1976-12-21 | Attig Donald B | Apparatus for removing sulfur dioxide and particulate matter from flue gases |
| US4282017A (en) * | 1979-09-12 | 1981-08-04 | Chen Hsi Chi | Automobile dirty smoke eliminator |
| US5143527A (en) * | 1991-04-24 | 1992-09-01 | Tian Song Guo | Waste gas-purifying device |
| US5364424A (en) * | 1992-05-15 | 1994-11-15 | Teles De Menezes Junior Antoni | Filter for washing and retention of exhaust gases in motorized vehicles |
| US20060057036A1 (en) * | 2002-10-25 | 2006-03-16 | Angel Ayala Hermosillo | System for elimnating polluting gases produced from combustion processes |
| US20210060283A1 (en) * | 2019-08-28 | 2021-03-04 | Koninklijke Philips N.V. | Humidifying a gas flow stream |
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